Which of the following is a primary source of CO?
A) Emissions from motor vehicles
B) Agricultural tilling
C) Emissions from battery plants
D) Emission from refrigerators
E) Construction works

Question

Quizplus · Accepted Answer

Emissions from motor vehicles are a primary source of carbon monoxide (CO) in the atmosphere. CO is produced by the incomplete combustion of fossil fuels in engine exhaust. Other sources listed such as agricultural tilling, battery plants, refrigerators, and construction works may emit other pollutants but are not significant sources of CO emissions.

Which of the Following Is a Primary Source of CO